Keith Grupenhoff

Rating History

Team Race Rating

Rating Rank vs fleet rating Record
2.82 (fleet 3.79) 64 of 331 +0.07 ± 0.16
about what the fleet rating predicts
as skipper 33–41 (45%)
SeasonRegattas Skipper W–LCrew W–L
Spring 2026733–41—
2.52.62.72.8Spring 2026St. Mary's Team Race Inter-Conference (2026-03-07): rating 2.71, fleet rating alone 2.67, offset +0.04; record 1-1 in this boatGeiger Trophy (2026-03-14): rating 2.68, fleet rating alone 2.64, offset +0.04; record 2-0 in this boatAaron Szambecki Team Race (2026-03-21): rating 2.68, fleet rating alone 2.64, offset +0.05; record 4-9 in this boatThe Lynn Marchiando Trophy Team Race-2026 (2026-03-28): rating 2.63, fleet rating alone 2.58, offset +0.04; record 2-3 in this boatThe Lynn Marchiando Trophy Team Race-2026 (2026-03-28): rating 2.63, fleet rating alone 2.58, offset +0.04; record 3-10 in this boatNEISA Open Team Race Championship/Fowle Trophy (2026-04-04): rating 2.64, fleet rating alone 2.59, offset +0.05; record 1-0 in this boatNEISA Open Team Race Championship/Fowle Trophy (2026-04-04): rating 2.64, fleet rating alone 2.59, offset +0.05; record 1-4 in this boatNEISA Open Team Race Championship/Fowle Trophy (2026-04-04): rating 2.64, fleet rating alone 2.59, offset +0.05; record 3-3 in this boatThompson Trophy (2026-04-11): rating 2.67, fleet rating alone 2.60, offset +0.07; record 1-0 in this boatThompson Trophy (2026-04-11): rating 2.67, fleet rating alone 2.60, offset +0.07; record 2-1 in this boatThompson Trophy (2026-04-11): rating 2.67, fleet rating alone 2.60, offset +0.07; record 2-7 in this boatTeam race rating

Rating before each regatta driven (solid; dots green when the boat won 60% or more of its matches there, red under 40%) and what the fleet rating alone would give (dashed). The gap is the team race offset as it stood at the time. Hover a dot for the regatta; click to open it.

Team race surprisal: regatta by regatta

Over 5 graded regattas (70 matches) the record is 30–40 against 26.1 wins the pre-event forecasts expected (+3.9). 1 regatta clearly above the rating (P ≤ 20%), 0 clearly below (P ≥ 80%); 2 bits of surprise in all.

DateRegattaRole Value Perf. RecordExp.
wins
Δ Surprise
(bits)
P(this good
or better)
2026-04-11Thompson Trophyskipper3.373.515–84.7+0.140.054%
2026-04-04NEISA Open Team Race Championship/Fowle Trophyskipper3.323.985–73.7+0.660.626%
2026-03-28The Lynn Marchiando Trophy Team Race-2026skipper3.123.375–134.3+0.250.145%
2026-03-21Aaron Szambecki Team Raceskipper3.103.034–94.1−0.070.067%
2026-02-28McMerrick Team Race Saturdayskipper3.044.2011–39.3+1.161.417%

Regatta results

Regatta Role Div Races Avg Rating
Fall 2026 Team page Season
Sherman Hoyt Trophy Skipper A 10 10.6 3.12
Open Atlantic Coast Tournament Finals Skipper A 10 4.2 4.29
Open Atlantic Coast Championships Round 1B Skipper A 10 9.3 3.88
Hatch Brown Trophy 2026 Skipper A 8 8.8 3.58
Harry H. Anderson Jr. Trophy Skipper A 9 7.9 3.85
Danmark Trophy Skipper A 5 7.6 4.55
Spring 2026 Team page Season
Thompson Trophy Skipper TR 15 33% —
St. Mary's Team Race Inter-Conference Skipper TR 9 33% —
Open Western National Semis Skipper B 7 6.6 4.33
NEISA Open Team Race Championship/Fowle Trophy Skipper TR 18 33% —
NEISA Open FR Champs - Coast Guard Alumni Bowl Skipper B 8 5.9 4.34
McMerrick Team Race Saturday Skipper TR 13 77% —
The Lynn Marchiando Trophy Team Race-2026 Skipper TR 18 28% —
Geiger Trophy Skipper TR 12 83% —
Aaron Szambecki Team Race Skipper TR 13 31% —
Fall 2025 Team page Season
Sherman Hoyt Trophy Skipper B 7 8.0 3.87
Open Atlantic Coast Tournament Finals Skipper B 14 6.6 3.68
Open Atlantic Coast Championship Round 1A Skipper B 7 8.4 3.76
Nickerson Trophy Skipper A 14 7.2 3.09
Hatch Brown Trophy 2025 Skipper C 3 2.7 5.43
Danmark Trophy Skipper B 11 12.8 3.02
Charles Invite Skipper B 9 2.8 1.84

Linked Profiles

League Name School Year
ISSA Keith Grupenhoff Immaculata La Salle High SchoolImmaculata La Salle High School '25

From the notes

Short write-ups of what the ratings and results show, with the numbers and how they were computed.

All notes →